Finding the Fourth Proportional to 740,726, 1,022,201.92 and 401,196.72

Step by Step Solution

1. Step 1: Write the proportion equation
   740,726 : 1,022,201.92 = 401,196.72 : x
2. Step 2: Convert to fraction form
   740,726/1,022,201.92 = 401,196.72/x
3. Step 3: Cross multiply
   740,726x = 1,022,201.92 × 401,196.72
4. Step 4: Simplify right side
   740,726x = 410,104,057,481.70
5. Step 5: Solve for x
   x = 410,104,057,481.70/740,726
6. Step 6: Final answer
   x = 553,651.50